|Raise your jewelry IQ Three Midnight Kanchataburi Sapphire ovals (2 ctw) This could be the smartest ring you ever buy. But that depends on whether you believe Saint Hildegard, the 12th-century mystic and philosopher. She believed that sapphire contained the divine powers of both water and fire. To absorb those powers and boost your intelligence, she recommended frequently kissing the gem. We figured out a better way to look like a genius without smooching on precious stones: just buy the Trivium Sapphire Ring. The brilliance of these faceted ovals is contagious. Nothing compares to the deep midnight blue of sapphires from Kanchataburi and that becomes clear the moment this ring slides on her finger. Show up with this ring and youll go to the head of the class.